diff --git a/apps/files_sharing/lib/notifier.php b/apps/files_sharing/lib/notifier.php
index 06067a5ee498365baf63e6c6a6df072817bb52fa..27e4e2565f2968a2255e55f07e3a79df872d4ffe 100644
--- a/apps/files_sharing/lib/notifier.php
+++ b/apps/files_sharing/lib/notifier.php
@@ -64,7 +64,8 @@ class Notifier implements INotifier {
 						case 'accept':
 							$action->setParsedLabel(
 								(string) $l->t('Accept')
-							);
+							)
+							->setPrimary(true);
 							break;
 
 						case 'decline':